            
            <volist name="{%varlist%}" id="vo">
            <input  type="radio" {%attributes%} value="{$vo.value}" title="{$vo.title}"
                <if (isset($data['id']) && $data['id']) >
                <eq name="$vo.value" value="$data.{%field%}">checked</eq>
                <else/>
                <eq name="$vo.checked" value="true">checked</eq>
                </if>
            >
            </volist>